Hospitalisation leave

As I am now currently 30 weeks 2 days just discharge on 1 may from kkh as a sub patient as the doctor gave me my hospitalisation leave from the date I admitted and discharge but therefore I am still having pain in my back and I have low blood sugar level and blood pressure down I don't know can I ask the doctor for extended periods for my hospitalisation leave. As I worried I might faint at work plus therefore my colleagues told me if you faint or water bag burst you have to settle your own we are not you maid. #advicepls #pleasehelp #secondtimemum